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GB1263853A - Improvements in multiphase generator and bus system - Google Patents

Improvements in multiphase generator and bus system

Info

Publication number
GB1263853A
GB1263853A GB02715/70A GB1271570A GB1263853A GB 1263853 A GB1263853 A GB 1263853A GB 02715/70 A GB02715/70 A GB 02715/70A GB 1271570 A GB1271570 A GB 1271570A GB 1263853 A GB1263853 A GB 1263853A
Authority
GB
United Kingdom
Prior art keywords
conductors
earth
bus
generator
neutral
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB02715/70A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB1263853A publication Critical patent/GB1263853A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G5/00—Installations of bus-bars
    • H02G5/06—Totally-enclosed installations, e.g. in metal casings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/04—Circuit arrangements for AC mains or AC distribution networks for connecting networks of the same frequency but supplied from different sources

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Windings For Motors And Generators (AREA)
  • Synchronous Machinery (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Installation Of Bus-Bars (AREA)

Abstract

1,263,853. Protective arrangements for polyphase generating systems. GENERAL ELECTRIC CO. 17 March, 1970 [29 April, 1969], No. 12715/70. Heading H2H. A polyphase power generating system comprises a generator having a plurality of polyphase winding sets each set having a separate neutral connection; a plurality of current responsive impedances by means of which each neutral connection is separately connected to earth and a plurality of sheathed bus sections having conductors connected to the winding sets and the sheaths connected to earth. A power generator 20 comprises two three-phase windings ABC; XYZ, electrically spaced by 60 degrees and having neutral connections N, M which are connected to earth by way of current responsive impedances 21, 22 in the form of transformers having secondary windings connected across resistors. The system further ineludes bus sections 23, 24, 25; each of which is provided with a sheath 23f connected to earth, and a pair of conductors 23a, 23b supported by standoff insulators 23c, 23d and separated by a dielectric shield 23e composed of two spaced insulating sheets. The conductors 23a, 23b in section 23 are connected to phases C and Z of the generator windings with similar connections for the sections 24, 25, thus the bus conductors in each section carry substantially antiphase currents. With a generating system so arranged, neutral to ground currents under fault conditions are limited by the impedances 21, 22 and line-to-line fault currents are reduced. The dielectric stresses in the sheaths are also reduced. In other embodiments the bus section conductors may be arranged coaxially or the bus sections may each only comprise one conductor in which case the conductor may be arranged to carry a reduced current by arranging the associated generator as a nine-phase machine.
GB02715/70A 1969-04-29 1970-03-17 Improvements in multiphase generator and bus system Expired GB1263853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82024369A 1969-04-29 1969-04-29

Publications (1)

Publication Number Publication Date
GB1263853A true GB1263853A (en) 1972-02-16

Family

ID=25230287

Family Applications (1)

Application Number Title Priority Date Filing Date
GB02715/70A Expired GB1263853A (en) 1969-04-29 1970-03-17 Improvements in multiphase generator and bus system

Country Status (7)

Country Link
US (1) US3531653A (en)
JP (1) JPS4925138B1 (en)
CH (1) CH505494A (en)
DE (1) DE2018981C3 (en)
FR (1) FR2040399A1 (en)
GB (1) GB1263853A (en)
SE (1) SE351533B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974398A (en) * 1971-01-18 1976-08-10 Othmer Donald F Wire and steel tube as AC cable
JPS5182882A (en) * 1975-01-08 1976-07-20 Hitachi Ltd Jidoseigyokeini okeru sosatanintaarotsukukaijohoho
DE10220738A1 (en) * 2002-05-08 2003-11-27 Siemens Ag Energy supply system for island grids
US7855335B2 (en) * 2006-04-26 2010-12-21 Palo Alto Research Center Incorporated Beam integration for concentrating solar collector
BR112015009694A2 (en) 2012-11-01 2017-07-04 Green Elmf Cables Ltd conductive busbar system for electric power distribution; electrical cabinet cabinet; method of reducing magnetic fields emanating from a single multiphase cabinet cabinet
US9438094B2 (en) * 2013-04-16 2016-09-06 Alstom Technology Ltd Connecting system for connection of an electric machine to a converter
CN109310041B (en) 2016-10-12 2022-06-14 株式会社久保田 Management system for work machines and work equipment

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1387469A (en) * 1917-02-13 1921-08-16 Westinghouse Electric & Mfg Co Means for suppressing harmonics
US1731906A (en) * 1926-03-31 1929-10-15 Gen Electric Alternating-current electric system
DE615688C (en) * 1929-01-12 1935-07-10 Aeg Device for determining the degree of earth fault compensation in high voltage networks
DE619518C (en) * 1929-03-09 1935-10-10 Aeg Device for determining the degree of compensation in high-voltage systems
DE581791C (en) * 1931-05-05 1933-08-03 Aeg Multi-phase power transmission system
US2306226A (en) * 1940-02-10 1942-12-22 Bbc Brown Boveri & Cie High voltage power transmission
DE949298C (en) * 1942-12-29 1956-09-20 Siemens Ag Modular control panel with control counting
US2630540A (en) * 1951-08-03 1953-03-03 Gen Electric Variable reluctance tuned circuit alternating current motor and method of operating the same
DE1042075B (en) * 1954-01-18 1958-10-30 Aeg Switchgear, the devices of which are housed in containers that are under excess pressure or filled with electronegative gases
US2731576A (en) * 1954-10-18 1956-01-17 Gen Electric 6-phase, 2-circuit generators
NL297757A (en) * 1962-09-22
US3259802A (en) * 1963-06-03 1966-07-05 Gen Electric Ground fault responsive protective system for electric power distribution apparatus
AT265416B (en) * 1965-01-07 1968-10-10 Electrical power generation and transmission equipment

Also Published As

Publication number Publication date
US3531653A (en) 1970-09-29
DE2018981C3 (en) 1982-03-18
FR2040399A1 (en) 1971-01-22
DE2018981A1 (en) 1970-11-05
SE351533B (en) 1972-11-27
DE2018981B2 (en) 1981-07-16
JPS4925138B1 (en) 1974-06-27
CH505494A (en) 1971-03-31

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